It is a collective work made anonymously or under a pseudonym and 70 years have passed since the date of date of production, first public presentation or first publication (whichever is latest)
It is a photographic work or a work of applied art and 45 years have passed since the year following the death of the author (or last-surviving author)
It is an artwork or musical/theatre performance and 70 years have passed (as of 31 December) following the year the work or performance was made
It is a piece of music and 70 years have passed following the year of publication or, if publication was not made on the date of first recording, 70 years following the year of recording
It is the work of a broadcasting organization and 35 years have passed since the year of first broadcast
It is another kind of work and 70 years have passed following the year of death of the author (or last-surviving author)
It is one of the "laws and decisions by administrative and judicial organs", an "unpublished speech made in public and not compiled into a book by the author", or "news of the day and reports of simple information regarding events made over social media"